This is the 1954-55 playoffs for the Ontario Hockey Association's Senior B series championship:
Participatig teams were decided in the 1954-55 OHA Senior B Season.
Semi Finals
Best of 7
- Dundas 2 Sarnia 0
- Sarnia 6 Dundas 2
- Sarnia 3 Dundas 2
- Sarnia beat Dundas
- Sarnia 4 Dundas 2
Sarnia Sailors beat Dundas 4 wins to 1.
- Orillia 6 Kingston 1
- Orillia 5 Kingston 4
- Kingston 9 Orillia 2
- Kingston 6 Orillia 3
- Kingston 5 Orillia 3
- Kingston 11 Orillia 3
Kingston Goodyears beat Orillia Pontiacs 4 wins to 2.
Final
Best of 7
- Kingston 5 Sarnia 2
- Kingston 3 Sarnia 2
- Kingston 4 Sarnia 2
- Kingston 6 Sarnia 3
Kingston Goodyears beat Sarnia Sailors 4 wins to none.